Most people think about drinking enough water or keeping their blood pressure under control when it comes to protecting their kidneys. But growing evidence suggests another factor may be just as important: the health of your gut.
According to research published in Frontiers in Nutrition, the bacteria living in our digestive system could play a significant role in reducing the risk of chronic kidney disease, reports rynekzdrowia.pl.
The findings are based on data from more than 6,500 adults who participated in the U.S. National Health and Nutrition Examination Survey (NHANES).
A growing scientific focus
For years, the gut and kidneys were studied separately. Today, researchers increasingly refer to the "gut-kidney axis" - a complex relationship between gut bacteria and kidney function.
Also read: Is turmeric actually good for you? Here's what the evidence really shows
The study found that people who regularly consumed foods that support a healthy gut microbiome were less likely to suffer from chronic kidney disease. Importantly, the association remained even after researchers accounted for age, lifestyle habits, and existing health conditions.
The strongest link was observed among adults aged 55 and older, suggesting that gut-friendly dietary habits may become even more important with age.
Foods under the spotlight
Researchers examined the effects of foods containing probiotics and prebiotics, which help maintain a balanced gut microbiome. These included:
- Yogurt and kefir
- Fermented vegetables
- Whole grains
- Garlic, onions, and leeks
- Fiber-rich fruits such as bananas
People who regularly consumed these types of foods showed a lower likelihood of developing chronic kidney disease compared with those who consumed them less frequently.
Also read: Why toenails get thicker as you age – and how to care of them
Promising but not conclusive
Scientists believe the benefits may stem from several biological mechanisms. A healthier gut microbiome may help reduce inflammation, strengthen the intestinal barrier, and limit the production of harmful compounds that can place stress on the kidneys.
However, the researchers stress that this was an observational study. While it identified a strong association, it cannot prove that these foods directly prevent kidney disease.
Even so, the findings add to a growing body of evidence suggesting that gut health plays a far greater role in overall wellbeing than previously thought. For many people, supporting kidney health may start with simple choices made at the dinner table.
Also read: Five food changes that may add more than 10 healthy years to your life
Also read: A compound made by your gut bacteria may be quietly raising your Alzheimer's risk
This article is made and published by Mie Hermansen, who may have used AI in the preparation.